The alleged parties took place in an unnamed "host country," which reportedly was Colombia, over a period of several years. According to the Justice Department inspector general report, the parties were even held in agents' U.S. government-leased quarters.Further, agents received "money, expensive gifts, and weapons from drug cartel members," according to the report, which explored sexual misconduct allegations and how they are handled at the DEA; FBI; Bureau of Alcohol, Tobacco, Firearms & Explosives (ATF); and the U.S. Marshals Service (USMS).

The IG report found such allegations often went unreported or underreported, or were not pursued properly.

The findings were immediately met Thursday with outrage on Capitol Hill, where lawmakers for years have pressured agencies to get tough on misconduct from within -- most notably, following the Secret Service prostitution scandal in 2012, also in Colombia. . . .